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Difficulty: MediumEvaluating Reasoning Flaws

Over the past academic year, a university evaluated student performance across fifty courses and found that students enrolled in departments offering recorded video lectures achieved lower average final examination scores than students in departments without lecture recordings. Based on this comparison, the administration concluded that access to recorded lectures inherently impairs student academic achievement, and it subsequently announced a policy to discontinue all lecture recording services. Which of the following statements identify valid flaws in the university administration's reasoning? Select all that apply.

  1. The argument infers a direct causal relationship between the availability of lecture recordings and lower academic performance based merely on a correlation between the two.Answer
  2. The argument assumes without justification that the underlying difficulty and grading standards of courses in departments offering recordings were equivalent to those in departments without recordings.Answer
  3. C
    The argument fails to incorporate survey data detailing whether students preferred live lectures over recorded sessions.
  4. D
    The argument does not prove that mandatory attendance policies would guarantee an overall increase in student examination scores.
  5. E
    The argument ignores evidence demonstrating that recorded lectures allow students with irregular work schedules to review key course materials effectively.

Answer

The valid flaws in the argument are the statement pointing out that a causal relationship is improperly inferred from a mere correlation, and the statement highlighting the unjustified assumption that course difficulty and grading standards were equal across departments.
The argument suffers from two central vulnerabilities. First, it commits a correlation-versus-causation fallacy by assuming that lower scores in departments with recordings were caused by the recordings themselves, rather than considering alternative factors (such as struggling students enrolling in those courses or recordings being offered in harder subjects). Second, it relies on an unstated assumption that the courses in both sets of departments were comparable in difficulty, student composition, and grading. Identifying both the correlation-causation error and the missing baseline assumption correctly pinpoint how the conclusion fails to follow logically from the premise.

Step-by-Step Solution

1
Analyze the argument's structure and identify premises and conclusion.
Premise: Departments offering video recordings had lower average exam scores than departments without recordings. Conclusion: Access to video recordings causes lower academic achievement and should be eliminated.
Deconstructing the argument reveals how the author leaps from observed comparative data to a definitive causal claim.
2
Evaluate logical gaps and assumptions in the inference.
Two primary vulnerabilities emerge: (1) assuming correlation proves causation without ruling out alternative explanations, and (2) assuming that the two groups of courses were otherwise identical in difficulty, subject matter, or grading.
Exposing missing links tests whether the conclusion logically follows from the premises.
3
Evaluate each option choice against the identified logical vulnerabilities.
The statements regarding mistaking correlation for causation and assuming equivalent course difficulty accurately describe flaws in the argument. The remaining choices present out-of-scope preferences, unwarranted extrapolations to unrelated policies, or practical benefits that do not critique the internal logic.
Isolating precise flaws ensures proper selection of all valid statements.

Key Concept

Evaluating Reasoning Flaws
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Evaluating Reasoning Flaws

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